ML20099C725

Interim Deficiency Rept DER 84-78 Re Valcor Solenoid Valves Failing to Operate or Failing While Operating.Initially Reported on 841004.Final Rept Delayed Until 841116

ML20099C725
Person / Time
Site:	Palo Verde
Issue date:	11/01/1984
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Bishop T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V)
References
ANPP-31031-TDS, DER-84-78, NUDOCS 8411200039
Download: ML20099C725 (3)

Text

m ll Arizona Public Service Company _ WhM,ED rir-R CD NO'! -5 p] "a g*o

. November 1;.1984 ANPP-31031-TDS/TRB

~%=lD0')*jjy U. S. Nuclear Regulatory Commission Region V Creekside Oaks Office Park 1450 Maria Lane - Suite 210 Walnut Creek; Califoruia ~ 94596-5368.

Attention: Mr. T. W. Bishop; Director Division of Reactor Safety and-Projects Interim Report - DER 84-78

Subject:

A 50.55(e) Potentially Reportable Deficiency Relating To Valcor Solenoid Valves.

File: 84-019-026; D.4.33.2 Telephone Conversation between D. Hollenbach and T. Bradish on

Reference:

October 4; 1984

Dear Sir:

The NRC was notified of a potentially reportable deficiency in the At that time; it was estimated that a referenced telephone conversation.

determination of reportability would be made within thirty (30) days.

Due to the extensive investigation and evaluation required; an Interim It is now expected that this information will be

-Report is attached.

at which time a complete report will be finalized by November 16; 1984; submitted.

Very truly yours, r

Q E. E. Van Brunt; Jr.

APS Vice President Nuclear Production ANPP Project Director I

EEVB/TRB/nj l-Attachment I

cc: See Page Two 94fi h O

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16~27

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Mr. - T. W.. Bishop.

. DER 84-78

~ Page Two cc:

Richard DeYoung; Director Office of ~ Inspection and Enforcement

~

U. S. Nuclear Regulatory Commission-Washington; D. C.

20555 T. C. Woods; Jr.

D. B' Karner W. E. Ide D. B. Fasnacht A. C. Rogers -

L. A; Souza D. -. E. Fowier T. D. Shriver C.-N. Russo J. Vorees J. R. Bynum

.J. M. Allen A. C. Gehr

-W.

J. Stubblefield W. G. Bingham R. L. Patterson R. W. Welcher H. D. Foster D. R. Hawkinson R. P. Zimmerman L. Clyde M. Woods T. J. Bloom Records Center Institute of Nuclear Power Operations 1100 circle 75 Parkway, Suite 1500 Atlanta, CA 30339 mu2_

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INTERIM REPORT - DER 84-78.

POTENTIAL REPORTABLE DEFICIENCY-

~

ARIZONA PUBLIC SERVICE COMPANY (APS)

PVNGS UNIT 1 s.

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Po'tential Problem During startup testing; four Valcor safety-related solenoid' valves failed to operate or failed while operating; These valves are - the

. blowdown sample valves 1J-SGA-UV-227; 1J-SGB-UV-228; and the

- pressurizer sample ' containment isolation valves lJ-SSA-UV-204;

-205; As -documented by Nonconformance Report (NCR) No. SE-4933;

' normal troubleshooting identified inoperative valve coils as the-cause of the valve failures.

II;

. Approach-To and Status Of Proposed Resolution Bechtel' Engineering is currently evaluating this deficiency to determine the reportability and technical justification for corrective action; III.

Projected Completion of-Corrective isction and Submittal of the Final Report The complete evaluation and final report ~are forecast to be completed by November 16; 1984.

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